ComfyUI/custom_nodes/comfyui-inspire-pack/js/progress-badge.js

import { api } from "../../scripts/api.js";

// copying from https://github.com/pythongosssss/ComfyUI-WD14-Tagger
class InspireProgressBadge {
	constructor() {
		if (!window.__progress_badge__) {
			window.__progress_badge__ = Symbol("__inspire_progress_badge__");
		}
		this.symbol = window.__progress_badge__;
	}

	getState(node) {
		return node[this.symbol] || {};
	}

	setState(node, state) {
		node[this.symbol] = state;
		app.canvas.setDirty(true);
	}

	addStatusHandler(nodeType) {
		if (nodeType[this.symbol]?.statusTagHandler) {
			return;
		}
		if (!nodeType[this.symbol]) {
			nodeType[this.symbol] = {};
		}
		nodeType[this.symbol] = {
			statusTagHandler: true,
		};

		api.addEventListener("inspire/update_status", ({ detail }) => {
			let { node, progress, text } = detail;
			const n = app.graph.getNodeById(+(node || app.runningNodeId));
			if (!n) return;
			const state = this.getState(n);
			state.status = Object.assign(state.status || {}, { progress: text ? progress : null, text: text || null });
			this.setState(n, state);
		});

		const self = this;
		const onDrawForeground = nodeType.prototype.onDrawForeground;
		nodeType.prototype.onDrawForeground = function (ctx) {
			const r = onDrawForeground?.apply?.(this, arguments);
			const state = self.getState(this);
			if (!state?.status?.text) {
				return r;
			}

			const { fgColor, bgColor, text, progress, progressColor } = { ...state.status };

			ctx.save();
			ctx.font = "12px sans-serif";
			const sz = ctx.measureText(text);
			ctx.fillStyle = bgColor || "dodgerblue";
			ctx.beginPath();
			ctx.roundRect(0, -LiteGraph.NODE_TITLE_HEIGHT - 20, sz.width + 12, 20, 5);
			ctx.fill();

			if (progress) {
				ctx.fillStyle = progressColor || "green";
				ctx.beginPath();
				ctx.roundRect(0, -LiteGraph.NODE_TITLE_HEIGHT - 20, (sz.width + 12) * progress, 20, 5);
				ctx.fill();
			}

			ctx.fillStyle = fgColor || "#fff";
			ctx.fillText(text, 6, -LiteGraph.NODE_TITLE_HEIGHT - 6);
			ctx.restore();
			return r;
		};
	}
}

export const inspireProgressBadge = new InspireProgressBadge();